The Windows Phone 8 Company Portal App does exactly what it says on the tin. The app enables Windows Phone 8 hardware that are managed by Microsoft System Center 2012 and Windows Intune to view, download and install business applications. Administrators are in control of the installation and signing of the app, which can then be made available to the management infrastructure to enable device enrolment.
Only Windows Phone 8 is reported to be required for everything to tick over, as well as System Center 2012 Configuration Manager SP1 with Windows Intune. For more information and the download links, head on over to the Microsoft website.